ETL 11-4 Airfield Pavement Drainage Layers  

Date: 
12-13-2011

This ETL adopts Unified Facilities Criteria (UFC) 3-230-06A, Subsurface Drainage, for use by the U.S. Air Force. This ETL also provides supplemental guidance on where drainage layers are required and ways to improve design, construction, and maintenance of airfield pavement drainage layers.

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